Beware of shoulder surfing while entering PIN
Avoid using same password
Ensure to change your password in case it has been revealed...
Avoid writing passwords or saving
Ensure to change your password at regular intervals
Ensure to take proper care while typing password or PIN
Ensure using different passwords
Enable MFA along with strong password
Never disclose your password
Replace obsolete/old systems regularly
Disconnect infected computers from internet
Regularly update mobile with latest software patches